CN204004241U - Spring is opened formula high damping automatic tensioner outward - Google Patents
Spring is opened formula high damping automatic tensioner outward Download PDFInfo
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- CN204004241U CN204004241U CN201420445047.4U CN201420445047U CN204004241U CN 204004241 U CN204004241 U CN 204004241U CN 201420445047 U CN201420445047 U CN 201420445047U CN 204004241 U CN204004241 U CN 204004241U
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- China
- Prior art keywords
- spring
- pedestal
- arc plate
- high damping
- automatic tensioner
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Abstract
The utility model discloses a kind of spring and open formula high damping automatic tensioner outward, comprise: front end pad, thrust washer, belt pulley, tension arms, spring seat, arc plate, spring, base, central shaft and spring supporting face, described tension arms comprises arm body, arm pipe, contact plane and through hole, and described spring seat comprises the first pedestal, the second pedestal, the 3rd pedestal, the first arc plate and the second arc plate.By the way, the utility model spring is opened formula high damping automatic tensioner outward, has that damping ratio is high, low cost and other advantages.
Description
Technical field
The utility model relates to automobile engine front end accessory transmission device field, particularly relates to a kind of spring and opens formula high damping automatic tensioner outward.
Background technique
Existing spring is opened formula Idle wheel technology outward, take the direct contact spring of tension arms, promote spring and outwards open pressuring spring seat, the spring seat of pressurized is pressed on damping piece on the inwall of Idle wheel base, during the two relative movement, produce frictional damping, spring is opened the force value of spring seat is approximated to spring opening tension value outward, and due to the restriction of structure, the outer tension force of spring on bearing support cannot increase substantially.
Therefore, damping ratio (ratio of damping frictional force and Idle wheel elastic force) is generally lower than 50%, so need to find a kind of positive pressure, high damping automatic tensioner that damping ratio is higher of increasing.
Model utility content
The technical problem that the utility model mainly solves is to provide a kind of spring and opens formula high damping automatic tensioner outward, have that reliability is high, compact structure, damping ratio is high, number of spare parts is few, processing technology is simplified, low cost and other advantages, simultaneously the application of automobile engine front end accessory transmission device and universal on have market prospects widely.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is:
Provide a kind of spring to open formula high damping automatic tensioner outward, it comprises: front end pad, thrust washer, belt pulley, tension arms, spring seat, spring, base, central shaft and spring supporting face, described tension arms comprises arm body, arm pipe, contact plane and through hole, described spring seat comprises the first pedestal, the second pedestal, the 3rd pedestal, the first arc plate and the second arc plate, described the second pedestal and described the 3rd pedestal are damping block, described the first pedestal and described the second pedestal are arcuate structure, described the first arc plate and described the second arc plate are arranged at respectively on described the first pedestal and described the second pedestal, described the second pedestal is connected with the inwall of described the first pedestal, described the first arc plate is arranged at the top of described the second arc plate, described the 3rd pedestal is arranged at the bottom of described the second arc plate, described spring supporting face is arranged at the bottom of described the 3rd pedestal, the top of described spring seat is connected with described contact plane, described contact plane and described arm pipe are arranged at the bottom of described arm body, described belt pulley is arranged at the top of described arm body, described through hole and described arm pipe are arranged at the central position of described contact plane, described central shaft is arranged at the central position of described base, the top of described central shaft extends to the top of described through hole from described arm pipe, described spring is around the outside of described arm pipe, and the top of described spring is connected with described spring seat or described spring supporting face, described front end pad and described thrust washer are arranged in described through hole, and described front end pad is connected with the top of described central shaft with described thrust washer.
In preferred embodiment of the utility model, described contact plane and described belt pulley are arranged at the two ends of described arm pipe.
In preferred embodiment of the utility model, described through hole is connected with described arm pipe.
In preferred embodiment of the utility model, also comprise groove, described groove is arranged in described base.
In preferred embodiment of the utility model, described spring, described spring seat and described arm pipe are arranged in described groove.
In preferred embodiment of the utility model, also comprise fixing tooth, described fixing tooth is arranged on the bottom surface of described the first pedestal.
In preferred embodiment of the utility model, the bottom surface of described the second pedestal is connected with the end face of described fixing tooth.
In preferred embodiment of the utility model, the girth of described the 3rd pedestal is less than the girth of described the second arc plate.
In preferred embodiment of the utility model, the diameter of described spring seat is greater than the diameter of described contact plane.
In preferred embodiment of the utility model, described front end pad is arranged at the top of described thrust washer.
The beneficial effects of the utility model are: the spring pressure on increase spring seat that can be maximum, can also obtain higher damping ratio, and reduce the cost of production of Idle wheel.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the structural representation that the utility model spring is opened one preferred embodiment of formula high damping automatic tensioner outward;
Fig. 2 is the sectional view that the utility model spring is opened formula high damping automatic tensioner outward;
Fig. 3 is the structural representation of spring seat described in the utility model;
Fig. 4 is the structural representation of tension arms described in the utility model;
Fig. 5 is the stressing conditions schematic diagram of spring seat described in the utility model;
Fig. 6 is the damping curve schematic diagram that the utility model spring is opened formula high damping automatic tensioner outward;
In accompanying drawing, the mark of each parts is as follows: 1, front end pad, 2, thrust washer, 3, belt pulley, 4, tension arms, 5, spring seat, 6, spring, 7, base, 8, central shaft, 9, spring supporting face, 41, arm body, 42, arm pipe, 43, contact plane, 44, through hole, the 51, first pedestal, the 52, second pedestal, 53, the 3rd pedestal, the 54, first arc plate, the 55, second arc plate.
Embodiment
Below the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making all other embodiments that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-6, the utility model is embodiment comprise:
A kind of spring is opened formula high damping automatic tensioner outward, it comprises: front end pad 1, thrust washer 2, belt pulley 3, tension arms 4, spring seat 5, spring 6, base 7, central shaft 8 and spring supporting face 9, and described tension arms comprises arm body 41, arm pipe 42, contact plane 43 and through hole 44;
Described spring seat 5 comprises the first pedestal 51, the second pedestal 52, the 3rd pedestal 53, the first arc plate 54 and the second arc plate 55, described the second pedestal 52 and described the 3rd pedestal 53 are damping block, described the first pedestal 51 and described the second pedestal 52 are arcuate structure, described the first arc plate 54 and described the second arc plate 55 are arranged at respectively on described the first pedestal 51 and described the second pedestal 52, described the second pedestal 52 is connected with the inwall of described the first pedestal 51, described the first arc plate 54 is arranged at the top of described the second arc plate 55, described the 3rd pedestal 53 is arranged at the bottom of described the second arc plate 55,
The structure of the part B that the components A that described the first pedestal 51 forms with described the first arc plate 54 forms with described the second pedestal 52 and described the second arc plate 55 is consistent, just the diameter of part B is less than the diameter of described components A, because described the first pedestal 51 and described the second pedestal 52 are all arcuate structure, so described the first pedestal 51 and described the second pedestal 52 centers have a semi-circular hole, in described arm Guan Xiancong semi-circular hole, pass and go, and then running through described spring, last described arm pipe 42 is enclosed within on described central shaft 8;
Described spring supporting face 9 is arranged at the bottom of described the 3rd pedestal 53, the top of described spring seat 5 is connected with described contact plane 43, described contact plane 43 and described arm pipe 42 are arranged at the bottom of described arm body 41, described belt pulley 3 is arranged at the top of described arm body 41, described through hole 44 and described arm pipe 42 are arranged at the central position of described contact plane 43, described central shaft 8 is arranged at the central position of described base 7, and the top of described central shaft 8 extends to the top of described through hole 44 from described arm pipe 42;
Described spring 6 is around the outside of described arm pipe 42, and the top of described spring 6 is connected with described spring seat 5 or described spring supporting face 9, described front end pad 1 and described thrust washer 2 are arranged in described through hole 44, and described front end pad 1 is connected with the top of described central shaft 8 with described thrust washer 2.
Described contact plane 9 and described belt pulley 3 are arranged at the two ends of described arm pipe 42.
Described through hole 44 is connected with described arm pipe 42, the diameter of described through hole 44 is greater than the diameter of described arm pipe 42, also be greater than the diameter of described front end pad 1 and described thrust washer 1, described like this front end pad 1 just can be connected with described central shaft 8 smoothly with described thrust washer 2.
Spring is opened formula high damping automatic tensioner outward and is also comprised groove, and described groove is arranged in described base 7.
Described spring 6, described spring seat 5 and described arm pipe 42 are arranged in described groove.
Spring is opened formula high damping automatic tensioner outward and is also comprised fixing tooth, and described fixing tooth is arranged on the bottom surface of described the first pedestal 51.
Described second bottom surface of pedestal 52 and the end face of described fixing tooth are connected.
The girth of described the 3rd pedestal 53 is less than the girth of described the second arc plate 55.
The diameter of described spring seat 5 is greater than the diameter of described contact plane 43.
Described front end pad is established 1 top that is placed in described thrust washer 2.
Rubbing surface between spring seat 5 and base 7 can be defined as two regions, and region 1 is the friction plate in β angular region, and region 2 is the friction plate in 95 degree angular regions.
In existing Leiden Idle wheel technology, only meet the situation of β=0 in the present invention o'clock, according to stress balance relation, rubbing surface surface pressure N approximates F_spr1, and the present invention can be by changing β angle, the object that reaches the size and Orientation of making a concerted effort that changes F_stop and F_spr1, the reaction force of making a concerted effort of F_stop and F_spr1 is a series of positive pressure N on rubbing surface on spring seat 5 that act on, its representation is:
damping frictional force f can be expressed as:
Wherein μ is friction factor;
In theory, have a suitable β angular region, within the scope of this, F_stop and F_spr1 can be greater than F_spr1 with joint efforts.When β angle equals 120 while spending, the size of making a concerted effort equals F_spr1.When β angle equals 60 degree, the size of making a concerted effort equals 1.73*F_spr1.
Outside stress on region 2 and existing Leiden, open the equivalence of formula Idle wheel, extra damping is provided.
On region 1 and region 2, under the superposition of damping frictional force, the overall damping ratio of Idle wheel can be promoted to more than 70%.
In addition, existing Leiden Idle wheel technology medi-spring supporting surface 9 is positioned on tension arms, the present invention designs spring supporting face 9 on spring seat, thereby the shape that makes tension arms becomes more succinct, the tension arms of simple shape is conducive to improve manufacturability and the yield rate of die castings, and is conducive to Mould Machining and detection.
Spring seat 5 adopts die casting and injection moulding combination process, reduces number of spare parts, further improves efficiency of assembling and reduces product cost.
The beneficial effect that the utility model spring is opened formula high damping automatic tensioner is outward: the spring pressure on increase spring seat that can be maximum, can also obtain higher damping ratio, and reduce the cost of production of Idle wheel.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a spring is opened formula high damping automatic tensioner outward, it is characterized in that, comprise: front end pad, thrust washer, belt pulley, tension arms, spring seat, spring, base, central shaft and spring supporting face, described tension arms comprises arm body, arm pipe, contact plane and through hole, described spring seat comprises the first pedestal, the second pedestal, the 3rd pedestal, the first arc plate and the second arc plate, described the second pedestal and described the 3rd pedestal are damping block, described the first pedestal and described the second pedestal are arcuate structure, described the first arc plate and described the second arc plate are arranged at respectively on described the first pedestal and described the second pedestal, described the second pedestal is connected with the inwall of described the first pedestal, described the first arc plate is arranged at the top of described the second arc plate, described the 3rd pedestal is arranged at the bottom of described the second arc plate, described spring supporting face is arranged at the bottom of described the 3rd pedestal, the top of described spring seat is connected with described contact plane, described contact plane and described arm pipe are arranged at the bottom of described arm body, described belt pulley is arranged at the top of described arm body, described through hole and described arm pipe are arranged at the central position of described contact plane, described central shaft is arranged at the central position of described base, the top of described central shaft extends to the top of described through hole from described arm pipe, described spring is around the outside of described arm pipe, and the top of described spring is connected with described spring seat or described spring supporting face, described front end pad and described thrust washer are arranged in described through hole, and described front end pad is connected with the top of described central shaft with described thrust washer.
2. spring according to claim 1 is opened formula high damping automatic tensioner outward, it is characterized in that, described contact plane and described belt pulley are arranged at the two ends of described arm pipe.
3. spring according to claim 1 is opened formula high damping automatic tensioner outward, it is characterized in that, described through hole is connected with described arm pipe.
4. spring according to claim 1 is opened formula high damping automatic tensioner outward, it is characterized in that, also comprises groove, and described groove is arranged in described base.
5. spring according to claim 4 is opened formula high damping automatic tensioner outward, it is characterized in that, described spring, described spring seat and described arm pipe are arranged in described groove.
6. spring according to claim 1 is opened formula high damping automatic tensioner outward, it is characterized in that, also comprises fixing tooth, and described fixing tooth is arranged on the bottom surface of described the first pedestal.
7. spring according to claim 6 is opened formula high damping automatic tensioner outward, it is characterized in that, the bottom surface of described the second pedestal is connected with the end face of described fixing tooth.
8. spring according to claim 1 is opened formula high damping automatic tensioner outward, it is characterized in that, the girth of described the 3rd pedestal is less than the girth of described the second arc plate.
9. according to spring claimed in claim 1, open formula high damping automatic tensioner outward, it is characterized in that, the diameter of described spring seat is greater than the diameter of described contact plane.
10. according to spring claimed in claim 1, open formula high damping automatic tensioner outward, it is characterized in that, described front end pad is arranged at the top of described thrust washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420445047.4U CN204004241U (en) | 2014-08-08 | 2014-08-08 | Spring is opened formula high damping automatic tensioner outward |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420445047.4U CN204004241U (en) | 2014-08-08 | 2014-08-08 | Spring is opened formula high damping automatic tensioner outward |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004241U true CN204004241U (en) | 2014-12-10 |
Family
ID=52044245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420445047.4U Expired - Fee Related CN204004241U (en) | 2014-08-08 | 2014-08-08 | Spring is opened formula high damping automatic tensioner outward |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004241U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179906A (en) * | 2014-08-08 | 2014-12-03 | 莱顿汽车部件（苏州）有限公司 | Spring-extending-type, high-damping and automatic tensioner |
| CN111712654A (en) * | 2018-01-03 | 2020-09-25 | 盖茨公司 | Tensioner |
-
2014
- 2014-08-08 CN CN201420445047.4U patent/CN204004241U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179906A (en) * | 2014-08-08 | 2014-12-03 | 莱顿汽车部件（苏州）有限公司 | Spring-extending-type, high-damping and automatic tensioner |
| CN111712654A (en) * | 2018-01-03 | 2020-09-25 | 盖茨公司 | Tensioner |
| CN111712654B (en) * | 2018-01-03 | 2023-12-26 | 盖茨公司 | tensioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170808 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |